Title:
CORES FOR USE IN PRECISION INVESTMENT CASTING
Document Type and Number:
Japanese Patent JP2006247750
Kind Code:
A
Abstract:
To provide concepts for fabricating improved cores for investment casting.
Cores are composites and include refractory metal elements (200) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.
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Inventors:
SHAH DILIP M
THOMPSON BEALS JAMES
MARCIN JOHN JOSEPH JR
MURRAY STEPHEN DOUGLAS
THOMPSON BEALS JAMES
MARCIN JOHN JOSEPH JR
MURRAY STEPHEN DOUGLAS
Application Number:
JP2006157607A
Publication Date:
September 21, 2006
Filing Date:
June 06, 2006
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP
International Classes:
B22C9/10; B22C9/04; B22C9/24; B22C21/14; B22D29/00; F02C7/00
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tomioka Kiyoshi